science chapter 4

• Where can we find mineral?


  Earth's crust
• What is minerals?


  solid elements or compounds present naturally with definite crystalline structures and chemical compositions.
• Types of minerals


  1.elements (made up of one kind of atom only)

  2.compounds (made up of two or more elements bound together)
• example of elements


  gold and silver
• example of natural compounds

  1.hematite

  2.cassiterite

  3.quartz

  4.bauxite (aluminium ore)

  5.galena (lead ore)

  6.pyrite

  7.calcite
• what is systematic name of hematite


  Iron (III) oxide
• what is systematic name of cassiterite


  Tin (IV) oxide
• what is systematic name of quartz


  Silicon dioxide
• what is systematic name of bauxite


  Aluminium oxide
• what is systematic name of galena


  Lead (II) sulphide
• what is systematic name of pyrite

  Iron (II) sulphide
• what is systematic name of calcite


  Calcium carbonate
• What does hematite consists of?


  Iron,oxygen
• What does cassiterite consists of?


  Tin,oxygen
• What does quartz consists of?


  Silicon,oxygen
• What does bauxite consists of?


  Aluminium,oxygen
• What does galena consists of?


  Lead,sulphur
• What does pyrite consists of?


  Iron,sulphur
• What does calcite consists of?


  Calcium,carbon,oxygen